Control Circuit Inspection

■ Check short to ground in harness
1. IG "OFF" and disconnect injector connector and PCM connector.
2. Measure resistance between injector control terminal of injector harness connector and chassis ground.
  1. Specification : Infinite
  Fig 1: Measuring Resistance Between Injector Control Terminal Of Injector Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
3. Is the measured resistance within specification?
  YES
  1. Go to "Check open in harness" as follows.
  NO
  1. Repair short to ground in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check open in harness
1. IG "OFF" and disconnect injector connector and PCM connector.
2. Measure resistance between injector control terminal of injector harness connector and injector control terminal of PCM harness connector.
  1. Specification : Below 1Ω
  Fig 2: Measuring Resistance Between Injector Control Terminal Of Injector Connector And Injector Control Terminal Of PCM Connector
  Courtesy of HYUNDAI MOTOR CO.
3. Is the measured resistance within specification?
  YES
  1. Go to "COMPONENT INSPECTION " procedure.
  NO
  1. Repair open in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.